/********************************************最小至托盘 end*******************************************/
private void button1_Click(object sender, EventArgs e)
{
string id = "220bd11e-86bf-4c80-8535-8a9c0818c760";
MysqlUtils mysqlUtils = new MysqlUtils();
//var result = mysqlUtils.PriciseSelectById(id);
var result = mysqlUtils.SelectUserFaceByFeature();
Console.WriteLine(result);
}
/// <summary>
/// 图像显示到窗体上，得到每一帧图像，并进行处理（画框）
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void videoSource_Paint(object sender, PaintEventArgs e)
{
if (videoSource.IsRunning)// 摄像头运行中
{
//得到当前摄像头下的图片
Bitmap bitmap = videoSource.GetCurrentVideoFrame();
if (bitmap == null)
{
return;
}
Graphics g = e.Graphics;
float offsetX = videoSource.Width * 1f / bitmap.Width;
float offsetY = videoSource.Height * 1f / bitmap.Height;
//检测人脸，得到Rect框（方框）
ASF_MultiFaceInfo multiFaceInfo = FaceUtil.DetectFace(pVideoEngine, bitmap);
//得到最大人脸
ASF_SingleFaceInfo maxFace = FaceUtil.GetMaxFace(multiFaceInfo);
//得到Rect
MRECT rect = maxFace.faceRect;
float x = rect.left * offsetX;
float width = rect.right * offsetX - x;
float y = rect.top * offsetY;
float height = rect.bottom * offsetY - y;
//根据Rect进行画框
g.DrawRectangle(pen, x, y, width, height);
// 调整摄像头视频框
if (rect.left.ToString() == "0")
{
this.videoSource.Location = new System.Drawing.Point(this.Width - 1, this.Height - 1);
}
else
{
int xVideoSource = (int)(0.5 * (this.Width - this.videoSource.Width));
int yVideoSource = (int)(0.5 * (this.Height - this.videoSource.Height));
this.videoSource.Location = new System.Drawing.Point(xVideoSource, yVideoSource);
}
// this.logBox.AppendText(rect.left.ToString() + "\n");
// this.videoSource.Show();// 能画框的时候显示摄像头视频框
if (trackUnit.message != "" && x > 0 && y > 0)
{
//将上一帧检测结果显示到页面上
g.DrawString(trackUnit.message, font, brush, x, y + 5);
}
//保证只检测一帧，防止页面卡顿以及出现其他内存被占用情况
if (isLock == false)
{
isLock = true;
//异步处理提取特征值和比对，不然页面会比较卡
ThreadPool.QueueUserWorkItem(new WaitCallback(delegate
{
if (rect.left != 0 && rect.right != 0 && rect.top != 0 && rect.bottom != 0)
{
try
{
//提取人脸特征 TODO 这是当前摄像头下的人脸的特征值
IntPtr videoFaceFeature = FaceUtil.ExtractFeature(pVideoImageEngine, bitmap, maxFace);
float similarity = 0f;
//得到比对结果 star TODO 这边compareFeature中
// TODO 数据库中查询出feature
MysqlUtils mysqlUtils = new MysqlUtils();
List <byte[]> featureListFromDB = mysqlUtils.SelectUserFaceByFeature();// 数据库查询
var v = 0;
for (int i = 0; i < featureListFromDB.Count; i++)
{
//pFeatureItemFromDB = TabConvert.BytesToIntptr(featureListFromDB[i]);
//GCHandle hObject = GCHandle.Alloc(featureListFromDB[i], GCHandleType.Pinned);
//pFeatureItemFromDB = hObject.AddrOfPinnedObject();
ASF_FaceFeature localFeature = new ASF_FaceFeature();
localFeature.feature = MemoryUtil.Malloc(featureListFromDB[i].Length); // 申请本地人脸特征指针
MemoryUtil.Copy(featureListFromDB[i], 0, localFeature.feature, featureListFromDB[i].Length); // source, startIndex, destination, length
localFeature.featureSize = featureListFromDB[i].Length; // 设置本地特征值长度
IntPtr pLocalFeature = MemoryUtil.Malloc(MemoryUtil.SizeOf <ASF_FaceFeature>()); // 申请本地特征值指针空间
MemoryUtil.StructureToPtr(localFeature, pLocalFeature); // T t,IntPtr ptr
/*
* IntPtr pFeatureItemFromDB = MemoryUtil.Malloc(MemoryUtil.SizeOf<ASF_FaceFeature>());
* v++;
* Marshal.StructureToPtr(featureListFromDB[i], pFeatureItemFromDB, false);
* Marshal.FreeHGlobal(pFeatureItemFromDB);
*/
imagesFeatureList.Add(pLocalFeature);
}
int result = compareFeatureFromDB(videoFaceFeature, out similarity);
if (result > -1)
{
// TODO
//将比对结果放到显示消息中，用于最新显示
trackUnit.message = string.Format("你好，匹配到 {0}号，相似度是 {1}", result, similarity);
labelLoginUserName.Text = result.ToString();
Console.WriteLine(result.ToString() + ":" + similarity.ToString() + "\n");
// TODO
// 相似度不足0.8，窗口正常显示
if (similarity < 0.8)
{
this.Visible = true;
this.WindowState = FormWindowState.Normal;
}
else// 相似度超过80，自动缩小至系统托盘
{
this.Hide();
this.notifyIcon.Visible = true;
}
// TODO 隔段时间打开托盘
Thread.Sleep(5000);// TODO 设置多长时间再次验证人脸，这边设置了2秒
this.Visible = true;
this.WindowState = FormWindowState.Normal;
}
else
{
//重置显示消息
trackUnit.message = "";
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
isLock = false;
}
}
isLock = false;
}));
}
}
}
